Tow bar



FIG. 1 is a perspective view of a tow bar showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof, on a reduced scale;

FIG. 4 is a bottom plan view thereof, on a reduced scale;

FIG. 5 is an end elevation view thereof, on a reduced scale; and,

FIG. 6 is an opposite end elevation view thereof, on a reduced scale. 

The ornamental design for a tow bar, as shown. 